2140308 has 18 divisors (see below), whose sum is σ = 5410314. Its totient is φ = 713424.

The previous prime is 2140301. The next prime is 2140309. The reversal of 2140308 is 8030412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2039184 + 101124 = 1428^2 + 318^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29691 + ... + 29762.

It is an arithmetic number, because the mean of its divisors is an integer number (300573).

2^2140308 is an apocalyptic number.

It is an amenable number.

2140308 is an abundant number, since it is smaller than the sum of its proper divisors (3270006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2140308 is a wasteful number, since it uses less digits than its factorization.

2140308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59463 (or 59458 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2140308 is about 1462.9791522780. The cubic root of 2140308 is about 128.8720563080.

The spelling of 2140308 in words is "two million, one hundred forty thousand, three hundred eight".